I'm currently experimenting with building a module. The example module is a bit sparse and the wiki seems a little bit out of date, so for getting started I'll probably heavily copy from the main campaign module and just rewrite the parts I need /e.g. races/classes/talents, quests and lore). Note, that I'm still using the files provided by the example module, I just copy the parts I'm currently working on to avoid the accumulation of legacy code.
Currently I'm trying to change to graphics. The Hulk module mentioned by the wiki uses gfx/terrain/* for storing the terrain tiles. The main campaign just states stuff like terrain/grass.png, yet, I could not locate a terrains folder. Searching (...$ find . -name *.png) for png files also got me nowhere, thus, I'm obviously missing something...

Also, I'd like to use the graphics from the main campaign without copying the files (I don't like redundancy, why have it stored twice if it is the same graphic?).
Thanks in advance!
(if this thread appears twice, sorry I got logged out while posting, couldn't find it and recreated it.)